1964 Andacollo mining accident
The 1964 Andacollo mining accident began on 19 February 1964, with a cave-in at a gallery of an improvised small-scale gold mine, located in the vicinity of the town of Andacollo, 39 kilometers southeast of the regional capital of La Serena, in north-central Chile. In the accident seven pirquineros were trapped a for days while ENAMI led an ultimately successful rescue.
Source: Wikipedia — 1964 Andacollo mining accident (CC BY-SA 4.0)